Wouldn't a much better way to do this be to set up a random e-mail (e.g. wofydfino67okfuyw@pistats.io) that you can then send you receipts to? You could either

Wouldn't a much better way to do this be to set up a random e-mail (e.g. wofydfino67okfuyw@pistats.io) that you can then send you receipts to? You could either do it all at once or with a forward, and it would mean that people that don't use Gmail could do it too.